819284444 has 12 divisors (see below), whose sum is σ = 1564088568. Its totient is φ = 372402000.

The previous prime is 819284419. The next prime is 819284467. The reversal of 819284444 is 444482918.

819284444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 18620101 = 819284444 / (8 + 1 + 9 + 2 + 8 + 4 + 4 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 819284395 and 819284404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9310007 + ... + 9310094.

It is an arithmetic number, because the mean of its divisors is an integer number (130340714).

Almost surely, 2^819284444 is an apocalyptic number.

It is an amenable number.

819284444 is a deficient number, since it is larger than the sum of its proper divisors (744804124).

819284444 is a wasteful number, since it uses less digits than its factorization.

819284444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18620116 (or 18620114 counting only the distinct ones).

The product of its digits is 294912, while the sum is 44.

The square root of 819284444 is about 28623.1452499546. The cubic root of 819284444 is about 935.7178256123.

The spelling of 819284444 in words is "eight hundred nineteen million, two hundred eighty-four thousand, four hundred forty-four".